3mL Cartridge w/500mg Amberlite XAD-7, 50/pk Back Catalog number: 2193 Availability: In the manufacturer's stock Price on request - + Recommended 730593 Chromab. columns HILIC, 3mL, 500mg 4 654,00 Kč 730109 Chromab. columns NAN, 3mL,400/1400/400mg 10 114,00 Kč 2103 SI Silica Gel 500mg/3mL, 50/pk Price on request